Study on the Effect of TiO₂ Particles on the Wear of the Inner Wall of Spinneret

This study utilizes polishing abrasives containing TiO₂ particles to simulate the wear process of small holes during spinning and analyzes the internal structure of worn small holes. It investigates the wear characteristics of 316L stainless steel spinneret plates processed by electrical discharge machining and laser drilling. Abrasive tests were performed on spinneret holes obtained by these processes using abrasives with different TiO₂ particle concentrations. The results show that TiO₂ particles in the abrasive induce wear on the inner wall of spinneret holes. Holes processed with TiO₂-containing abrasives exhibit noticeable morphological changes on the wall surface compared to those without TiO₂ particles. The degree of wear increases with TiO₂ concentration. Additionally, holes processed by electrical discharge machining exhibit significantly higher wear than those processed by laser drilling under the same concentration conditions, indicating the significant impact of spinneret hole processing methods on wear resistance performance.